Rude comments from husband's khala - confront her or no?

Re: Rude comments from husband’s khala - confront her or no?

My FIL thought it would be funny to comment on all the weight I had gained after I had my baby.
He jokingly said I look like a “haati” and shouldn’t eat much. I had only gained 20lbs and I was very skinny before I had my baby, AND I had postpartum depression and he knew it. He still finds the need to comment on my weight whenever I talk to MIL about getting new clothes stitched from Pak. Comments like “Apne naye measurements dedo, kaafi gain kar liya hai” when coming from your FIL are very uncomfortable … MIL doesn’t see why I should be offended as he’s only “joking”.